12z. It's out on the Euro site. You just have to piece it together.
https://charts.ecmwf.int/?facets={"Product type"%3A["Experimental%3A AIFS"]%2C"Parameters"%3A[]%2C"Range"%3A[]%2C"Type"%3A[]}
Fwiw, 12z Euro AI has an overrunning event start around 330hrs and we're on the wrong side.
But the EuroAI does jump around past 240hrs. 0z, fwiw, looked like today's 12z snow.
Euro had 1 run showing the bomb and Gfs 2. Either way, this exercise only proves anything beyond day 4 or 5 is weenie fodder.
That said, what time should we start to see the first flakes on the 20th?
Surface-wise, if we want action from the slp, we want to see the rn/sn line move north down south which would signal a northerly trajectory. But chances are not high, of course.
If we can get a refresher this weekend and then a bigger threat the following weekend or so, that's all we can reasonably ask for around here in an "average " winter imho.
Nam radar In motion would put the southern slug mainly south of most here west of the Bay south of DC.
https://www.pivotalweather.com/model.php?m=nam&p=refcmp&rh=2025010718&fh=loop&r=conus&dpdt=&mc=&pwplus=1
I started beating the desk in November in the La Niña thread that the trough over or near Japan was new and would maintain the trough in the east. Still important to at least keep a ridge out of Japan if not a trough imho. Though not a trough, that 15 day map is close enough to neutral not to hurt us.
We are at the 12 year solar peak and the sun has been extremely active...recall the recent Northern Lights?
https://solen.info/solar/index.html
No big deal.